public class Main{
    public static void main(String[] args) {
        int a, b, c, d, e, f, g, h, i, sum = 0;
        for (a = 1; a <= 9; a++) {
            for (b = 1; b <= 9; b++) {
                for (c = 1; c <= 9; c++) {
                    for (d = 1; d <= 9; d++) {
                        for (e = 1; e <= 9; e++) {
                            for (f = 1; f <= 9; f++) {
                                for (g = 1; g <= 9; g++) {
                                    for (h = 1; h <= 9; h++) {
                                        for (i = 1; i <= 9; i++) {
                                            if (a != b && a != c && a != d && a != e && a != f && a != g && a != h
                                                    && a != i && b != c && b != d && b != e && b != f && b != g && b != h
                                                    && b != i && c != d && c != e && c != f && c != g && c != h && c != i
                                                    && d != e && d != f && d != g && d != h && d != i && e != f && e != g
                                                    && e != h && e != i && f != g && f != h && f != i && g != h && g != i
                                                    && h != i) {
                                                if (a + b + c + d == d + e + f + g && a + b + c + d == a + i + h + g) {
                                                    sum++;
                                                }
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
        System.out.println(sum / 6);
    }
}